To compare the population densities of Europe and the United States, we need to calculate the density for each region using the formula:
\[ \text{Population Density} = \frac{\text{Population}}{\text{Land Area}} \]
First, let's calculate the population density for Europe:
- Population of Europe: 743.5 million people = 743,500,000 people
- Land Area of Europe: 3.9 million square miles = 3,900,000 square miles
\[ \text{Density of Europe} = \frac{743,500,000}{3,900,000} \approx 190.6 \text{ people per square mile} \]
Next, let's calculate the population density for the United States:
- Population of the United States: 332.4 million people = 332,400,000 people
- Land Area of the United States: 3.5 million square miles = 3,500,000 square miles
\[ \text{Density of the United States} = \frac{332,400,000}{3,500,000} \approx 95.0 \text{ people per square mile} \]
Now we can compare the population densities:
- Europe: approximately 190.6 people per square mile
- United States: approximately 95.0 people per square mile
Thus, Europe is more densely populated than the United States.
The correct answer is: Europe is more densely populated, with a density of 190.6 people per square mile.